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ינואר 01, 2013

  • Date:25חמישיאוקטובר 2018

    Bose-Einstein condensation of photons

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    שעה
    11:15 - 12:30
    מיקום
    בניין הפיזיקה ע"ש עדנה וק.ב. וייסמן
    מרצהMartin Weitz
    Institut für Angewandte Physik, Universität Bonn
    מארגן
    הפקולטה לפיזיקה
    צרו קשר
    תקצירShow full text abstract about Bose-Einstein condensation has been observed in several phys...»
    Bose-Einstein condensation has been observed in several physical systems, including cold atomic gases, exciton-polaritons, and magnons. Photons usually show no Bose-Einstein con-densation, since for Planck’s blackbody radiation the particle number is not conserved and the photons at low temperatures vanish in the system walls. I here describe experiments with a dye-filled optical microresonator experimentally observing Bose-Einstein condensation of pho-tons. Thermalization is achieved in a number conserving way by repeated absorption re-emission cycles on the dye molecules, and the cavity mirrors provide both an effective photon mass and a confining potential. More recently, we have investigated calorimetric properties of the trapped photon gas, and determined both the heat capacity and the entropy around the phase transition. In other work, we have realized lattice potentials for photons in the dye mi-crocavity. In my talk, I will begin with a general introduction and give an account of current work and future plans of the Bonn photon gas experiment.
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  • Date:25חמישיאוקטובר 2018

    Hierarchical dynamics of visual inference

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    שעה
    12:30 - 12:30
    מיקום
    בניין לחקר המוח על-שם נלה וליאון בנוזיו
    מרצהProf. Jochen Braun
    Institute of Biology Otto-von-Guericke Unversity, Magdeburg
    מארגן
    המחלקה למדעי המוח
    צרו קשר
    תקצירShow full text abstract about Visual input is noisy, variable, and ambiguous. Optimal inf...»
    Visual input is noisy, variable, and ambiguous. Optimal inference of physical causes is challenging even for a restricted set of causes (e.g., orientations and spatial frequencies). It is well understood (e.g., Veliz-Cuba et al., 2016) that stochastic dynamical systems can approximate optimal inference by continuously accumulating and evaluating visual evidence. I will argue that the dynamics of multi-stable perception is consistent with just such an inference mechanism. Its psychophysically observable characteristics fully constrain a hierarchical dynamics with three levels, the lowest of which may conceivably correspond to cortical columns or clusters of columns. Given suitable inputs, this hierarchical dynamics accumulates and evaluates noisy evidence to make nearly optimal categorical discriminations. Moreover, its dynamical features seem to afford functional benefits in a volatile world, such as balancing stability and sensitivity of inference.

    References:
    Cao, Pastukhov, Mattia, Braun (2016) Collective activity of many bistable assemblies reproduces characteristic dynamics of multistable perception. J. Neurosci., 36: 6957-72.

    Veliz-Cuba, Kilpatrick, Josic (2016) Stochastic models of evidence accumulation in changing environments. SIAM Review, 58: 264-289.

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  • Date:25חמישיאוקטובר 2018

    Development of placenta-derived (PLX) cell therapy- from bench- to bedside

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    שעה
    14:00 - 15:00
    כותרת
    Special Guest Lecture
    מיקום
    בניין ע"ש מקס ולילאן קנדיוטי
    מרצהDr. Racheli Ofir
    Vice President Research & Intellectual Property, {Pluristem, MATAM, Haifa
    מארגן
    המחלקה לאימונולוגיה ורגנרציה ביולוגית
    צרו קשר
    תקצירShow full text abstract about PLacental expanded (PLX) cells are placenta-derived, mesench...»
    PLacental expanded (PLX) cells are placenta-derived, mesenchymal-like adherent stromal cells expanded using a bioreactor system which provides a three dimensional (3D) micro-environment enabling tightly controlled expansion. Accumulated data from multiple in vitro and in vivo experiments indicate that these cells act via a paracrine or endocrine manner to facilitate healing of damaged tissue.
    Pluristem’s two lead placenta-derived cell products, PLX-PAD and PLX-R18, are each in clinical development for several indications. PLX-Immune is in non-clinical development stages for Cancer. Data from non-clinical as well as clinical studies will be presented.
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  • Date:25חמישיאוקטובר 2018

    Pelletron meeting - by invitation only

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    שעה
    16:00 - 17:30
    צרו קשר
    הרצאה
  • Date:28ראשוןאוקטובר 201802שישינובמבר 2018

    International Board SAAC Review

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    שעה
    כל היום
    צרו קשר
    אירועים אקדמיים
  • Date:28ראשוןאוקטובר 201801חמישינובמבר 2018

    SAAC meeting

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    שעה
    כל היום
    כותרת
    ישיבות הועדה המדעית האקדמית המייעצת, 2018
    צרו קשר
    מועצת המנהלים הבינלאומית
  • Date:28ראשוןאוקטובר 2018

    Pre SAAC Symposium on Recent Progress in Chemistry and in Advanced Materials

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    שעה
    08:30 - 16:30
    מיקום
    מרכז כנסים על-שם דויד לופאטי
    יושב ראש
    Jacob Klein
    דף בית
    כנסים
  • Date:28ראשוןאוקטובר 2018

    Pre-SAAC Symposium on High Energy Physics

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    שעה
    10:00 - 15:45
    מיקום
    בניין הפיזיקה ע"ש עדנה וק.ב. וייסמן
    מרצהProf. Beate Heinemann, Prof. Joanna Stachel, Prof. Marumi Kado, Prof. Michael Dine, Prof. Michelangelo L. Mangano
    מארגן
    הפקולטה לפיזיקה
    צרו קשר
    הרצאה
  • Date:28ראשוןאוקטובר 2018

    Interactive Microscopy Image Analysis with IMARIS

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    שעה
    10:30 - 10:30
    מיקום
    בניין ע"ש מקס ולילאן קנדיוטי
    מרצהGeorgia Golfis
    BITPLANE
    מארגן
    המחלקה לתשתיות מחקר מדעי החיים
    צרו קשר
    הרצאה
  • Date:28ראשוןאוקטובר 2018

    Convergence of hunger and thirst in the insular cortex

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    שעה
    11:00 - 11:00
    מיקום
    בניין ארתור ורושל בלפר למחקר ביורפואי
    מרצהDr. Yoav Livneh
    Beth Israel Deaconess Medical Center and Harvard Medical School
    מארגן
    המחלקה למדעי המוח
    צרו קשר
    הרצאה
  • Date:28ראשוןאוקטובר 2018

    Ozone waves in the stratosphere and the early winter mid-latitude QBO signal

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    שעה
    11:00 - 11:00
    מיקום
    בניין משפחת זוסמן
    מרצהVered Silverman
    Earth and Planetary Sciences Weizmann Institute of Science
    מארגן
    המחלקה למדעי כדור הארץ וכוכבי הלכת
    צרו קשר
    הרצאה
  • Date:28ראשוןאוקטובר 2018

    Unravelling the tumor immune microenvironment by multiplexed imaging

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    שעה
    15:00 - 15:00
    מיקום
    בניין ארתור ורושל בלפר למחקר ביורפואי
    מרצהDr. Leeat Yankielowicz-Keren
    Department of Pathology, School of Medicine, Stanford University
    מארגן
    המחלקה לאימונולוגיה מערכתית , המחלקה לביולוגיה מולקולרית של התא , המחלקה לגנטיקה מולקולרית
    צרו קשר
    הרצאה
  • Date:28ראשוןאוקטובר 2018

    Ultrahigh Field MR Imaging in the Mesosphere Where Physics, Life Sciences, Computer Sciences and Medicine Meet

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    שעה
    16:30 - 17:30
    מיקום
    אולם הרצאות ע"ש גרהרד שמידט
    מרצהProf. Thoralf Niendorf
    Berlin Ultrahigh Field Facility (B.U.F.F.), Max-Delbrueck Center for Molecular Medicine
    מארגן
    המחלקה לכימיה מולקולרית ולמדע חומרים
    צרו קשר
    תקצירShow full text abstract about The development of ultrahigh field magnetic resonance (UHF-M...»
    The development of ultrahigh field magnetic resonance (UHF-MR) is moving forward at an amazing speed that is breaking through technical barriers almost as fast as they appear. UHF-MR has a staggering number of potential uses in neuroscience, neurology, radiology, cardiology, internal medicine, physiology, oncology, nephrology, ophthalmology and other related clinical fields. With over 50,000 MR examinations already performed at 7.0 Tesla, the reasons for moving UHF-MR into clinical applications are more compelling than ever. The value UHF-MR has already proven itself many times over at lower field strengths; now 7.0 T has opened a window on tissues, organs, and (patho)physiological processes that have been largely inaccessible in the past. Images from these instruments have revealed new aspects of the anatomy, functions and physio-metabolic characteristics of the brain, heart, joints, kidneys, liver, eye, and other organs/tissues, at an unparalleled quality. 50,000 sounds like a large number, but in fact we have barely cracked open the door and have yet to truly assess what lies on the other side. To this end this presentation documents advances and progress of UHF-MR with the goal to engage the interest of clinical adopters, basic scientists, engineers, and translational researchers from many areas. To meet this goal the traits, challenges and opportunities for discovery of human UHF-MRI will be surveyed. The considerations run from technical advances to early clinical applications. Examples of UHF-MR strategies are demonstrated. Their added value over the kindred counterparts at lower fields is explored along with an outline of research promises. Encouraging developments into enabling multiple channel radiofrequency (RF) antennae concepts (Figure 1) are reviewed. Frontier applications of MR at 7.0 T are surveyed including cardiac imaging (Figure 1), ophthalmic MRI and high spatial resolution MRI of the brain. Heteronuclear UHF-MR applications are explored with a focus on in vivo mapping of electrolytes including potassium MRI and sodium MRI (Figure 1). Practical obstacles of UHF MR are outlined including MR safety. Insights into RF heating induced by conductive stents and implants are provided. Current trends in UHF-MR are considered together with their clinical implications. A concluding section ventures a glance beyond the horizon including explorations into Extreme Field MR (EF-MR) which envisions human MR at 20 Tesla, which is an important leap of the imagination because it aims to fill a crucial "resolution gap" in our understanding of human biology (39, 40). It is the speakers hope that this presentation will convey the seeds of this vision and inspire the audience to become pioneers in these amazingly promising new areas of biomedical research: ultrahigh field and extreme field MR..
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  • Date:29שניאוקטובר 201801חמישינובמבר 2018

    International Board SAAC Review

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    שעה
    כל היום
    צרו קשר
    אירועים אקדמיים
  • Date:31רביעיאוקטובר 2018

    Developmental Club Series 2018-2019

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    שעה
    10:00 - 10:00
    כותרת
    “Mapping vascular formation and function in health and disease”
    מיקום
    בניין קמיליה בוטנאר
    מרצהProf. Karina Yaniv
    מארגן
    המחלקה לגנטיקה מולקולרית
    צרו קשר
    הרצאה
  • Date:31רביעיאוקטובר 2018

    G-INCPM - Special Seminar - Prof. Ofer Feinerman, Dept. of Physics of Complex Systems, Weizmann - "Managing information over multiple organizational scales"

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    שעה
    11:00 - 12:15
    מיקום
    המרכז הישראלי הלאומי לרפואה מותאמת אישית על-שם ננסי וסטיבן גרנד
    צרו קשר
    תקצירShow full text abstract about A main adaptive advantage of social insects is their ability...»
    A main adaptive advantage of social insects is their ability to concurrently probe multiple locations while gathering information over scales that are much larger than that of a single individual. Collecting information is, however, only the first step since information fragments must be fused to yield collective action. This information aggregation process is far from trivial and can teach us about the tensions between individual and group and how these might be resolved in an effective manner. This talk will discuss several examples for such tensions and their resolution in the context of cooperative transport by longhorn crazy ants: collectively accumulated information vs. updated individual information, large scale information required for effective action vs. small scale information available to individuals, and group level consensus from conflicting individual information. All these examples point towards information collection and aggregation schemes that utilize the advantages of large groups without compromising the valuable information gathered by each individual.
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  • Date:31רביעיאוקטובר 2018

    Transmission of Memories Across Generations

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    שעה
    12:30 - 12:30
    מיקום
    אולם הרצאות ע"ש גרהרד שמידט
    מרצהProf. Oded Rechavi
    Dept of Neurobiology, Wise Faculty of Life Sciences and Sagol School of Neuroscience, Tel Aviv University
    מארגן
    המחלקה למדעי המוח
    צרו קשר
    תקצירShow full text abstract about In C.elegans nematodes small RNAs enable transmission of epi...»
    In C.elegans nematodes small RNAs enable transmission of epigenetic responses across multiple generations. The mechanism that allows small RNA inheritance in the germline is being elucidated, and multiple factors, which are needed for this type of epigenetic inheritance per se have been identified. Different environmental conditions, including exposure to viruses, starvation, and heat stress generate heritable small RNA responses. It is still unclear whether endogenous small RNAs, similarly to exogenous small RNAs, can move between cells, and from the soma to the germline (breaching the “Weismann barrier, and allowing inheritance). We are interested in the provocative possibility that heritable small RNA responses can alter the progeny’s behavior, by altering the function of the worm’s nervous system. I the seminar I will discuss our recent findings, ideas, and theories.
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  • Date:01חמישינובמבר 2018

    Current techniques to detect and isolate a wide spectrum of biomolecules (from single molecules to nanoparticles)

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    שעה
    09:00 - 10:00
    מיקום
    בניין ע"ש מקס ולילאן קנדיוטי
    מרצהDr. Yael Fridmann Sirkis
    Protein Analysis Unit Department of Life Sciences Core Facilities
    מארגן
    המחלקה לתשתיות מחקר מדעי החיים
    צרו קשר
    הרצאה
  • Date:04ראשוןנובמבר 201807רביעינובמבר 2018

    הכינוס השנתי ה-70 של המועצה הבינלאומית

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    שעה
    כל היום
    מיקום
    מרכז כנסים על-שם דויד לופאטי
    צרו קשר
    מועצת המנהלים הבינלאומית
  • Date:04ראשוןנובמבר 2018

    DWEK Workshop on Children & Cancer

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    שעה
    08:00 - 17:00
    כותרת
    See Conferences
    מיקום
    בניין ע"ש מקס ולילאן קנדיוטי
    מרצהProf. Ayelet Erez
    מארגן
    המחלקה לאימונולוגיה ורגנרציה ביולוגית
    צרו קשר
    הרצאה

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